Home / 3,190.28-4,785.42-2,957

Finding the Fourth Proportional to 3,190.28, 4,785.42 and 2,957

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Solution

The fourth proportional to 3,190.28, 4,785.42 and 2,957 is: 4,435.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.28 : 4,785.42 = 2,957 : x
  2. Step 2: Convert to fraction form
    3,190.28/4,785.42 = 2,957/x
  3. Step 3: Cross multiply
    3,190.28x = 4,785.42 × 2,957
  4. Step 4: Simplify right side
    3,190.28x = 14,150,486.94
  5. Step 5: Solve for x
    x = 14,150,486.94/3,190.28
  6. Step 6: Final answer
    x = 4,435.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.